dangerous, since it is due to an unnatural black bile, or to acute
fevers, in which the humors are consumed. This variety bears the name
of _pustula_. A fourth form is called _lenticula_. This latter form
occurs sometimes with fever, like synocha, sometimes without fever,
and it arises from pestilential air or corrupt food, or from sitting
near a patient suffering from the disease, the exhalations of which
are infectious.

The premonitory symptoms of _variolae_ are a high fever, redness of
the eyes, pain in the throat and chest, cough, itching of the nose,
sneezing and pricking sensations over the surface of the body.

_Morbilli_ is a mild disease, but requires protection from cold, which
confines and coagulates the peccant matter.

Attention is directed to the not infrequent ulcers of the eyes, which
occur in _variolae_ and may destroy the sight; also to ulcerations
of the nose, throat, oesophagus, lungs and intestines, the latter of
which often produce a dangerous diarrhoea.

When _variolae_ occurs in boys, it is recommended to tie the hands of
the patient to prevent scratching.

Whey is said to be an excellent drink for developing the eruption of
_variolae_, and the time-honored saffron (_crocus_) appears in several
of Gilbert's prescriptions for this disease. Here, too, we find
the earliest mention of the use of red colors in the treatment of
_variolae_ (f. 348 c):

"_Vetule provinciales dant purpuram combustam in potu, habet enim